CN103697846A - Method for detecting wall thickness evenness of multi-directional die forged piece - Google Patents
Method for detecting wall thickness evenness of multi-directional die forged piece Download PDFInfo
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- CN103697846A CN103697846A CN201310704433.0A CN201310704433A CN103697846A CN 103697846 A CN103697846 A CN 103697846A CN 201310704433 A CN201310704433 A CN 201310704433A CN 103697846 A CN103697846 A CN 103697846A
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Abstract
The invention relates to a method for detecting the wall thickness evenness of a multi-directional die forged piece. The method comprises the following steps of manufacturing the centering device of a three-jaw chuck structure; manufacturing a measurement device comprising depth measurement and two-radius measurement; during measurement, firstly, assembling the measurement device onto the centering device; then inserting the depth measuring bar and the radius measuring bar of the measurement device into the punched hole of a forged piece to be measured; regulating the centering device; causing the three jaws of the centering device to clamp the external diameter of the forged piece; regulating the chuck to cause the center of the measurement device to be overlapped with the center of an aperture to be measured; reading depth, end radius and bottom radius measurement data; rotating the measurement device to record four groups of data; comparing the four groups of data to judge whether the punched hole of the forged piece is deflected or not and judging the evenness of the punched hole; and judging the depth of the punched hole of the forged piece to determine whether the forged piece is qualified. According to the method for detecting the wall thickness evenness of the multi-directional die forged piece, which is disclosed by the invention, the aperture deflection can be accurately measured, the hole depth and the aperture can be read in one time, the measurement method is simple and convenient and has accurate data, one person can independently operate, so that inspection personnel can be reduced, and the production cost is saved.
Description
Technical field
The present invention relates to measure the method for multi-ram forging part, specifically a kind of method that detects multi-ram forging part evenness of wall thickness.
Background technology
Take triple-valve body forging as example, and due to pattern draft, when producing in enormous quantities, easy occurred level mould upwarps, the phenomenon of vertical mold deflection, although now inner aperture is concentric, hole tilts, and inclination size is difficult to measure.Adopt existing measuring method, need at least two people to coordinate just and can complete surveying work, measuring speed is slow, and batch production needs a large amount of testing staff can meet production requirement, and as can be seen here, surveying work inefficiency, measures cost remarkable.
Summary of the invention
The present invention is intended to solve above-mentioned multi-ram forging part inside dimension and measures problem, and provide a kind of, only need a people just can measure very easily the inclination situation in aperture, hole depth, hole simultaneously, and all can read accurate numerical value, the method for the detection multi-ram forging part evenness of wall thickness simple, convenient, checkability is high.
The technical scheme that the present invention solves its technical matters employing is:
Detect a method for multi-ram forging part evenness of wall thickness, carry out in the steps below:
A. make centring means: centring means is adjustable scroll chuck structure, and chuck is provided with center pit;
B. make measurement mechanism: measurement mechanism comprises a depth survey bar and two radius measurement bars, two radius measurement bar intervals are assemblied on depth survey bar, depth survey bar upper end is fixed with the snap ring of the center pit clearance fit of centring means and display screen is installed, depth survey bar and radius measurement bar are Collapsible structure, front end is equipped with respectively the sensor that measurement data is provided to display screen, and sensor is high-precision micro Self-resetting displacement transducer;
C. measure:
(I) first pulled down two radius measurement bars of measurement mechanism from depth survey bar, measurement mechanism is passed through to the clearance fit of its snap ring and centring means center pit, measurement mechanism is fixed on centring means, then two radius measurement bars is assemblied in respectively on the end and bottom of depth survey bar;
(II) inserted the depth survey bar of measurement mechanism and radius measurement bar in the punching of forging to be measured, adjusts centring means, makes three claws of centring means block forging outer dia, adjusts chuck, makes the center of measurement mechanism and aperture center to be measured overlapping;
(III) reads measurement data, by A, B, tri-groups of data of C on digital display screen, and the data of difference registered depth, end radius, bottom radius, then by measurement mechanism half-twist, then measure respectively end and bottom radius, record data, three times so repeatedly, record altogether four groups of data;
(IV) record data contrast to four groups of ends and bottom radius, judges whether deflection of punching forgings, and punching forgings uniformity coefficient determines that by end and four groups of data difference of bottom radius whether forging is qualified simultaneously; By reading depth transducer data, judge that whether the punching forgings degree of depth is qualified.
Adopt the present invention of technique scheme, compared with prior art, its outstanding feature is:
Owing to measuring multi-ram forging part inside dimension, end is measured and bottom is measured as with one heart, thus can measure very accurately aperture deflection, and hole depth, aperture can once read, and measuring method is simple, convenient, and data are accurate; Because a people can operate alone, reduced reviewer, therefore save production cost.The present invention is specially adapted to the measurement of multi-ram forging three-way piece, vacuum valve valve body forging, gate valve body forging, stop valve body forging inside dimension and evenness of wall thickness.
Accompanying drawing explanation
Fig. 1 is centring means structural representation of the present invention.
Fig. 2 is measurement mechanism structural representation of the present invention.
Fig. 3 is measurement mechanism of the present invention and centring means package assembly schematic diagram.
Fig. 4 is embodiment of the present invention measuring state schematic diagram.
In figure: chuck 1, claw 2, center pit 3, display screen 4, snap ring 5, depth survey bar 6, depth transducer 7, bottom radius sounding rod 8, bottom radius sensor 9, end radius sounding rod 10, end radius sensor 11, forging 12, punching 13.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and object is only to understand better content of the present invention.Therefore, the cited case does not limit the scope of the invention.
The present embodiment take that to measure triple-valve body forging be example, and the method that detects multi-ram forging part evenness of wall thickness is described in detail in detail, and concrete steps are as follows:
(1) make centring means.
Referring to Fig. 1, centring means is adjustable scroll chuck structure, chuck 1, claw 2, consists of, and chuck 1 is provided with center pit 3.Centring means adopts scroll chuck principle, blocks forging 12 external diameters, by external diameter, determines center.Because forging 12 external diameters are by mould molding, unless the open defect that mould damages or forging 12 underfills cause, forging 12 outside dimensions generally there will not be deviation.Therefore according to external diameter, determine center, can judge whether internal diameter center and external diameter center are the same center of circle.
(2) make measurement mechanism.
Referring to Fig. 2, measurement mechanism is comprised of depth survey bar 6, depth transducer 7, bottom radius sounding rod 8, bottom radius sensor 9, end radius sounding rod 10, end radius sensor 11 and display screen 4, snap ring 5, two radius measurement bars 8,10 are assemblied on depth survey bar 6, depth survey bar 6 upper ends are fixed with snap ring 4 and display screen 4 are installed, snap ring 4 is connected for the center pit 3 with centring means, and its tolerance clearance 0.05mm is so that rotation; Depth survey bar 6, bottom radius sounding rod 8, end radius sounding rod 10 front ends are equipped with respectively the sensor that measurement data is provided to display screen 4, be depth transducer 7, bottom radius sensor 9 and end radius sensor 11, three sensors are high-precision micro Self-resetting displacement transducer, the measurement range of sensor is 10mm, 20mm, 30mm, tetra-ranges of 50mm, can change as required, precision is 1 μ m and 5 μ m, can guarantee accuracy, the accuracy measured.Three sounding rods are extension type hollow structure, the connection that hollow is transmitted circuit in order to sensor and display screen 4 signals, telescopicly can regulate the required length of sounding rod according to the degree of depth or the radius size measured, the sensor that is then equipped with suitable range completes measurement.Display screen 4 is for the data of display measurement, total A, B, tri-the Show Buttons of C on it, difference corresponding depth transducer 7, bottom radius sensor 9 and end radius sensor 11, whether qualified depth transducer 7, for measuring punching 13 degree of depth of forging 12, measure punching forgings 13 degree of depth according to the reading of depth transducer 7; Bottom radius sensor 9 and end radius sensor 11 are for measuring punching forgings wall bottom and top apart from the data of forging 12 centre distances, the data of bottom radius sensor 9 and end radius sensor 11 can be used as punching forgings 13 vertical data foundation whether up and down, as bottom radius sensor 9 and end radius sensor 11 data difference surpass permissible variation, can conclude that punching forgings 13 deviations do not meet the demands.
(3) measure.
Referring to Fig. 3, first two radius measurement bars 8,10 of measurement mechanism are pulled down from depth survey bar 6, measurement mechanism is passed through to the clearance fit of its snap ring 5 and centring means center pit 3, measurement mechanism is fixed on centring means, then two radius measurement bars 8,10 is assemblied in respectively on the end and bottom of depth survey bar 6.
Referring to Fig. 4, the depth survey bar 6 of measurement mechanism and two radius measurement bars 8,10 are inserted in the punching 13 of forging 12 to be measured, adjust centring means, make three claws 2 of centring means block forging 12 outer dias, adjust chuck 1, make the center of measurement mechanism and punching 13 centers overlapping.
After measurement mechanism combination, start to carry out reading, by A, B, tri-groups of data of C on digital display screen 4, the data of difference registered depth, bottom radius, end radius, then by measurement mechanism half-twist, then measure respectively end and bottom radius, record data, three times so repeatedly, record altogether four groups of data; Record data contrast to four groups of ends and bottom radius, judges whether deflection of punching forgings 13, and punching forgings 13 uniformity coefficient determine that by end and four groups of data difference of bottom radius whether forging 12 is qualified simultaneously; By reading depth transducer 7 data, judge that whether punching forgings 13 degree of depth are qualified.
Claims (1)
1. a method that detects multi-ram forging part evenness of wall thickness, is characterized in that, carries out in the steps below:
A. make centring means: centring means is adjustable scroll chuck structure, and chuck is provided with center pit;
B. make measurement mechanism: measurement mechanism comprises a depth survey bar and two radius measurement bars, two radius measurement bar intervals are assemblied on depth survey bar, depth survey bar upper end is fixed with the snap ring of the center pit clearance fit of centring means and display screen is installed, depth survey bar and radius measurement bar are Collapsible structure, front end is equipped with respectively the sensor that measurement data is provided to display screen, and sensor is high-precision micro Self-resetting displacement transducer;
C. measure:
(I) first pulled down two radius measurement bars of measurement mechanism from depth survey bar, measurement mechanism is passed through to the clearance fit of its snap ring and centring means center pit, measurement mechanism is fixed on centring means, then two radius measurement bars is assemblied in respectively on the end and bottom of depth survey bar;
(II) inserted the depth survey bar of measurement mechanism and radius measurement bar in the punching of forging to be measured, adjusts centring means, makes three claws of centring means block forging outer dia, adjusts chuck, makes the center of measurement mechanism and aperture center to be measured overlapping;
(III) reads measurement data, by A, B, tri-groups of data of C on digital display screen, and the data of difference registered depth, end radius, bottom radius, then by measurement mechanism half-twist, then measure respectively end and bottom radius, record data, three times so repeatedly, record altogether four groups of data;
(IV) record data contrast to four groups of ends and bottom radius, judges whether deflection of punching forgings, and punching forgings uniformity coefficient determines that by end and four groups of data difference of bottom radius whether forging is qualified simultaneously; By reading depth transducer data, judge that whether the punching forgings degree of depth is qualified.
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| CN201310704433.0A CN103697846A (en) | 2013-12-20 | 2013-12-20 | Method for detecting wall thickness evenness of multi-directional die forged piece |
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| CN201310704433.0A CN103697846A (en) | 2013-12-20 | 2013-12-20 | Method for detecting wall thickness evenness of multi-directional die forged piece |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403860A (en) * | 2016-08-29 | 2017-02-15 | 中航动力股份有限公司 | Die forging piece dimension measurement method |
| CN109596080A (en) * | 2019-01-14 | 2019-04-09 | 燕山大学 | Damper inner hole of cylinder instrument for testing precision |
| CN112344822A (en) * | 2019-07-20 | 2021-02-09 | 南平市建阳区汽车锻压件厂 | Wall thickness upper and lower limit synchronous detection type axle main pin hole inner sleeve detection device |
| CN113309370A (en) * | 2021-07-02 | 2021-08-27 | 北京天润建设有限公司 | Measure device of civil engineering structure connection deviation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403860A (en) * | 2016-08-29 | 2017-02-15 | 中航动力股份有限公司 | Die forging piece dimension measurement method |
| CN109596080A (en) * | 2019-01-14 | 2019-04-09 | 燕山大学 | Damper inner hole of cylinder instrument for testing precision |
| CN112344822A (en) * | 2019-07-20 | 2021-02-09 | 南平市建阳区汽车锻压件厂 | Wall thickness upper and lower limit synchronous detection type axle main pin hole inner sleeve detection device |
| CN113309370A (en) * | 2021-07-02 | 2021-08-27 | 北京天润建设有限公司 | Measure device of civil engineering structure connection deviation |
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Application publication date: 20140402 |